Frequencies for first 10,000 rows of smsares variable in natl1989 dataset :

PSMA/MSA of |
  Residence |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      4,061       40.61       40.61
        015 |        294        2.94       43.55
        019 |          7        0.07       43.62
        022 |          1        0.01       43.63
        033 |          2        0.02       43.65
        035 |      2,315       23.15       66.80
        057 |          2        0.02       66.82
        066 |         63        0.63       67.45
        090 |          1        0.01       67.46
        093 |        333        3.33       70.79
        099 |          3        0.03       70.82
        102 |        212        2.12       72.94
        108 |          1        0.01       72.95
        122 |        787        7.87       80.82
        128 |          1        0.01       80.83
        173 |          1        0.01       80.84
        177 |        787        7.87       88.71
        180 |        729        7.29       96.00
        187 |          1        0.01       96.01
        189 |          4        0.04       96.05
        195 |          1        0.01       96.06
        197 |          1        0.01       96.07
        202 |          1        0.01       96.08
        207 |         13        0.13       96.21
        209 |          8        0.08       96.29
        274 |          2        0.02       96.31
        278 |          1        0.01       96.32
        283 |        368        3.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016